/Engine/Source/Editor/EditorFramework/Public/Elements/Framework/TypedElementViewportInteraction.h
This list should have been pre-normalized viaUTypedElementSelectionSet::GetNormalizedSelectionorUTypedElementSelectionSet::GetNormalizedElementList, orFLevelEditorViewportClient::GetElementsToManipulate.
void BeginGizmoManipulation ( FTypedElementListConstRef InElementsToMove, const [UE::Widget::EWidgetMode](API\Editor\EditorFramework\UE__Widget__EWidgetMode) InWidgetMode )